215 results about "Demulsifier" patented technology

A hyperbranched polymer and a preparation method therefor and the use thereof. The hyperbranched polymer comprises a structural formula of formula 1, wherein R is selected from a substituted or unsubstituted C12-C18 alkyl. The hyperbranched polymer, which is used as a demulsifier for demulsifying crude oil emulsions, exhibits a high demulsification efficiency, a low usage amount, a low demulsification temperature, a high acid and alkali resistance, and a high salt resistance. The demulsifier has a high demulsification performance in oil-water emulsions with various properties.

The invention relates to the technical field of industrial wastewater treatment, and discloses a treatment method for grinding fluid wastewater of a grinder, which comprises the following steps: pretreatment and demulsification, multi-stage chemical purification, biochemical deep treatment, deep purification and recycling, and sludge treatment. A specific supported heterogeneous catalyst is adopted in the multi-stage chemical purification step, nano zero-valent iron and copper oxide composite active components constructed on the surface of the catalyst can enhance the generation efficiency and stability of free radicals in the advanced oxidation process, and a composite coagulant with an optimized ratio in the coagulating sedimentation step is cooperated, so that the purification efficiency of the high-grade oxidation process is improved. An efficient continuous removal system for heavy metal ions and refractory organic pollutants is formed; meanwhile, in the pretreatment step, the demulsifier is composed of specific components, through the synergistic effect of all the components, rapid demulsification of the emulsified oil phase in the grinding fluid wastewater is achieved, favorable conditions are created for subsequent deep treatment, and therefore the purification efficiency and operation stability of the technology are overall improved.

The present application belongs to the technical field of electric field separation device, and particularly relates to an electric field enhanced oil-water separation equipment, which comprises a separation cylinder, a liquid inlet pipe communicated with the middle of one side of the separation cylinder, a drain pipe communicated with the bottom of the other side of the separation cylinder, a sealing part detachably connected to the top of the separation cylinder, an electrolytic stirring assembly arranged in the middle of the sealing part and arranged in the separation cylinder, a floating scum separation assembly arranged on the upper part of the inner side of the separation cylinder, an exhaust part installed on the sealing part and having an air inlet end communicated with the inside of the separation cylinder, a feeding part installed on the sealing part and having a material outlet end communicated with the inside of the separation cylinder, and a blowdown part coaxially fixed to the bottom of the separation cylinder and having a material inlet end communicated with the inside of the separation cylinder. The electrolytic stirring assembly is arranged to split the oil liquid into small oil droplets, and the demulsifier is mixed with the oily sewage more uniformly, so that the demulsification effect is improved, the generation of flocculation is improved, and the oil-water separation efficiency is improved.

The invention relates to a biodegradable hydraulic oil composition and a preparation method of hydraulic oil, and relates to the technical field of hydraulic oil compositions.The hydraulic oil composition comprises, by weight, 20-37% of ester oil, 5-10% of refined vegetable oil and 5-10% of a demulsifier, and the total weight of the ester oil, the refined vegetable oil and the demulsifier is 100%. The content of the refined vegetable oil is 62-79.9 wt%, the content of the demulsifier is 0.1-1 wt%, and the preparation method of the refined vegetable oil comprises the following steps: pre-loading a nanocapsule with an antioxidant as an inner core in activated clay, loading the activated clay pre-loaded with the nanocapsule into deacidified oil, and filtering to obtain the refined vegetable oil. The hydraulic oil composition disclosed by the invention has excellent biodegradability and also has the technical effects of relatively good oxidation stability and viscosity-temperature property.

This invention discloses a demulsifier for polymer flooding crude oil produced fluids, its preparation method, and its application, belonging to the field of chemical additives for petrochemicals. The technical solution includes a main agent, an auxiliary agent, a penetrant, and water; the main agent is a polyene-polyamine block polyether, the auxiliary agent is a triethanolamine block polyether quaternary ammonium salt, and the penetrant is selected from at least one of methanol, ethanol, ethylene glycol, and diethylene glycol butyl ether; in the demulsifier, the ratio of the main agent to the auxiliary agent is 4-9:1, the amount of penetrant is 30% of the total amount of the main agent and auxiliary agent, and the amount of water is 70% of the total amount of the main agent and auxiliary agent. This invention, applied to demulsification of polymer flooding crude oil produced fluids, features high demulsification efficiency and rapid demulsification effect.

The application provides an oil-containing wastewater treatment equipment and method based on low-temperature evaporation, and belongs to the technical field of wastewater treatment. The equipment comprises, which are arranged in series, a demulsifier reaction tank, a polyaluminum chloride reaction tank and a polyacrylamide reaction tank, and oil-containing wastewater flows through the three reaction tanks to realize continuous and staged flocculation; a filter pressing device is communicated with a discharge port of the polyacrylamide reaction tank, and is internally provided with an arc-shaped filter residue assembly, a rotary residue scraping assembly and a filter pressing cleaning assembly, and the three assemblies are cooperated to form integrated operations of filtering, salvaging, filter pressing and cleaning; and a low-temperature evaporation machine is connected to a liquid outlet end of the filter pressing device. The application realizes continuous demulsification and flocculation treatment through the multi-tank series connection, and batch waiting is not needed; the filter pressing device automatically cleans flocculation materials while filter pressing, so that blockage is avoided and manual cleaning is not needed during shutdown. The overall process is closely connected, and the degree of automation is high, so that the oil-containing wastewater treatment efficiency and continuous production capacity are significantly improved, and the water quality after treatment can reach the recycling standard.

The invention relates to a method for improving the dewatering performance of organic sludge by using a polyether demulsifier, and belongs to the technical field of municipal sludge treatment. The epoxyethane / epoxypropane block polyether is utilized to effectively destroy a stable oil-water emulsification system in the organic sludge, reduce interfacial tension and promote water release, and the dehydration performance of the organic sludge is remarkably improved by destroying an oil-water interfacial film structure. By utilizing the method disclosed by the invention, the dehydration efficiency of the organic sludge can be remarkably improved, the capillary water absorption time of the sludge and the specific resistance of the sludge are remarkably reduced, the Zeta potential of the sludge becomes closer to a positive value, the median particle size of the sludge is remarkably improved, and the water content of a sludge cake is greatly reduced; the method is easy and convenient to operate, existing dehydration equipment can be directly utilized, and extra investment is not needed; the adding proportion of the demulsifier can be optimized according to actual sludge characteristics, so that the medicament cost is saved; the method provided by the invention provides an economic and efficient technical scheme for organic sludge treatment and disposal, and sludge reduction and recycling can be promoted.

The invention discloses a preparation method for blending finished fan oil by using regenerated fan oil, which comprises the following steps: (1) adding 40-85 parts by weight of regenerated fan oil, 10-40 parts by weight of mPAO synthetic base oil and 5-15 parts by weight of solubilizer into a blending tank, heating to 55-65 DEG C, and uniformly stirring and mixing; (2) adding 40-4000 ppm of a defoaming agent into the blending tank in the step (1), and uniformly stirring and mixing at 55-65 DEG C; (3) adding 2-3 parts of a composite additive into the blending tank in the step (2), and uniformly stirring and mixing at 45-55 DEG C; (4) adding 40-150ppm of a demulsifier into the blending tank in the step (3), and uniformly stirring and mixing at 45-55 DEG C to obtain primary blend oil; and (5) filtering the primary blend oil obtained in the step (4) to obtain the finished fan oil. The high-quality fan gear box lubricating oil is successfully prepared, the finished fan oil can effectively reduce the cost, meanwhile, the performance requirement of the fan oil can be met, the quality of the fan oil is equivalent to that of commercial fan new oil, and the market application value is high.

The invention relates to the technical field of oil-gas field development, and particularly discloses a fracturing flow-back fluid oil-water separation method based on a centrifugal down-flow same-term capture technology. Comprising the following steps: S1, pretreatment: filtering the fracturing flow-back fluid to remove large-particle-size suspended solids contained in the fracturing flow-back fluid so as to obtain a pretreatment fluid; s2, demulsification: adding a demulsifier into the pretreatment solution obtained in S1, and stirring and mixing to obtain a demulsification solution; s3, air flotation separation; s4, performing centrifugal downstream same-term capturing; s5, collecting an oil phase; s6, water phase purification; and S7, recovering and circulating the medicament. The oil-water separation method for the fracturing flow-back fluid can be used for treating the fracturing flow-back fluid with the high emulsification degree generated in the exploitation process of unconventional oil and gas resources such as shale gas and tight oil and gas, and has the advantages of being high in separation efficiency, low in oil content of effluent, high in system adaptability, controllable in comprehensive operation cost and environmentally friendly.

The invention discloses a real-time monitoring and feedback regulation and control device for oilfield sewage treatment, and belongs to the technical field of sewage treatment. The device comprises a monitoring unit used for collecting multiple water quality parameters and process operation parameters in the oilfield sewage treatment process in real time; the regulation and control unit comprises a medicament adding module, a stirring regulation and control module, a filtering regulation and control module and a water outlet valve control module which are respectively used for adding a demulsifying agent, a flocculating agent and a corrosion inhibitor, regulating stirring parameters, controlling start and stop of a filtering assembly, backwashing and regulating the water outlet flow; the control unit is used for receiving the real-time parameter data transmitted by the monitoring unit, comparing a real-time water quality parameter with a preset threshold value, and generating a regulation and control instruction through the process parameter matching model in combination with a process operation parameter so as to realize closed-loop feedback regulation and control; the auxiliary unit comprises a sewage inlet pipeline, a treatment tank body, a water outlet pipeline and a medicament storage assembly; through multi-unit collaborative design and intelligent technology integration, efficient, intelligent and safe operation of oilfield sewage treatment is realized.

A method for preparing oily sludge-based inorganic eco-stone includes the following steps: S1: Mixing oily sludge and water until homogeneous, allowing natural sedimentation to separate the oil phase from the liquid and solid phases, and collecting the mixed slurry of liquid and solid oily sludge; S2: Adding a demulsifier to the mixed slurry, mixing and stirring, allowing natural sedimentation, and collecting the solid slurry; S3: Mixing the solid slurry, silicate cement, curing compound, and aggregate until homogeneous to obtain the raw material slurry of oily sludge-based inorganic eco-stone; S4: Pressing the raw material slurry into shape, curing, and preparing the oily sludge-based inorganic eco-stone. The advantages are: the oily sludge-based inorganic eco-stone has excellent mechanical properties and low water absorption, making it suitable for road construction, landscaping projects, and outdoor landscape design, with a wide range of applications.

The invention discloses a demulsifier based on enzyme-nano composite microspheres as well as a preparation method and a cascade application method thereof, and belongs to the technical field of sewage treatment. The invention aims to solve the technical problems that the existing demulsifier is poor in sewage degradation effect, poor in free enzyme stability, easy to inactivate and the like. According to the key point of the technical scheme, the demulsifier based on the enzyme-nano composite microspheres comprises the following components in percentage by dry weight of the composite microspheres: 30-60% of a polymer matrix, 10-40% of an enzyme preparation and 15-50% of a nano silicon-based material.

The utility model provides a kind of demulsifier detection equipment, including support frame, support frame is fixed with collection box and first motor, the rotating shaft of first motor is fixed with two-way screw rod, the top of collection box is equipped with fixed ring, the inside of fixed ring is rotatably connected with the reaction dish of top and bottom open, reaction dish is fixed with the partition that reaction dish inside is divided into upper and lower two storage spaces, support frame is equipped with second motor for driving fixed ring rotation to make reaction dish top and bottom exchange position, fixed ring is equipped with third motor for driving reaction dish rotation.The utility model can quickly detect demulsifier sample by the exchange of reaction dish top and bottom, and automatically clean the storage space after the use of reaction dish, without staff to take down reaction dish manually clean the inside of reaction dish, reduce the labor burden of staff, and improve the efficiency of demulsifier quality detection.

A variety of methods, compositions, apparatuses, and systems are disclosed, including, in one embodiment, a technique of hydraulic fracturing involving providing a fracturing fluid having capsules containing a demulsifier through a wellbore into a subterranean formation and hydraulically fracturing the subterranean formation with the fracturing fluid, wherein the fracturing fluid forms an emulsion in the subterranean formation. The technique includes releasing the demulsifier from the capsules in the subterranean formation, breaking the emulsion in the subterranean formation with the demulsifier released by the capsules, and flowing the fracturing fluid as flowback from the subterranean formation through the wellbore to surface after and / or during the breaking of the emulsion.

The invention discloses a multi-effect demulsification treatment method and system for cold rolling oily wastewater, firstly, a multi-effect demulsification process of'acidification demulsification-neutralization flocculation 'is innovatively adopted, not only is acid-containing wastewater of a cold rolling pickling section or an acid regeneration section used as an acidic demulsifier to realize'treatment of waste by waste' and cost reduction, but also the treatment of waste by waste is realized through subsequent neutralization, aeration and flocculation, so that the treatment efficiency is improved. The demulsification efficiency is obviously improved. In addition, a grading air flotation strategy of cavitation air flotation and pressurized dissolved air flotation is adopted, so that thorough separation and excellent effluent quality are ensured. The cold rolling oily wastewater with different concentrations and compositions can be efficiently treated by accurately controlling key parameters such as pH, iron ion concentration and medicament adding amount. Finally, through the multi-effect synergistic effect, efficient demulsification and oil-water separation of different types of cold rolling oil-containing wastewater are achieved, the treatment efficiency is improved, the operation cost is reduced, stable effluent quality is ensured, and the oil removal rate of the cold rolling oil-containing wastewater can reach 92-99%.

The invention provides a hyperbranched polymer as well as a preparation method and application thereof, the hyperbranched polymer has a structural formula as shown in formula 1, and R1, R2, R3 and R are independently selected from C8-C22 alkyl and C8-C22 alkenyl respectively. The hyperbranched polymer provided by the invention is used as a demulsifier, is applied to demulsification of crude oil emulsion, and has the advantages of high demulsification efficiency, low usage amount, low demulsification temperature, high acid and alkali resistance and high salt resistance.

The application discloses a kind of ashless hydraulic oil lubricating oil compositions, according to mass percentage includes the following components: ashless antiwear agent 0.2-0.4wt%, bisphenol antioxidant 0.2-0.5wt%, auxiliary antioxidant 0.1-0.25%, ionic liquid 0.2-0.5wt%, rust inhibitor 0.02-0.04wt%, passivator 0.02-0.05%, demulsifier 0.01-0.02wt%, anti-foaming agent is 0.01-0.02wt%, ester base oil 1-5wt%, the rest is base oil.The hydraulic oil lubricating oil composition of the application has oxidation resistance, low sludge, hydrolytic stability, passes through high-pressure plunger Komatsu HPV35+35 bench test, meets the harsh operating condition requirements of high-temperature high-pressure hydraulic system, and can be applied to various hydraulic systems.

The invention provides a novel adsorptive carrier recycling method and system, and belongs to the field of adsorptive carrier after-treatment. The method comprises the following steps: sequentially carrying out high-temperature weak-acid weak-base cleaning, medium-temperature strong-base cleaning and normal-temperature strong-acid cleaning on the settled adsorptive carrier sludge, recycling and putting the cleaned adsorptive carrier, and using the cleaning residual liquid obtained after cleaning as a demulsifier or a biochemical modifier in the sewage treatment process. According to the process, a closed-loop operation process route of an adsorptive carrier cleaning technology in a sewage treatment system is realized, process conditions such as high-temperature combustion, high-pressure catalysis and ultrasound are avoided, the production operation environment is convenient and fast, and secondary pollution such as waste gas and heavy metal fly ash which are formed by the adsorptive carrier in an adsorptive carrier regeneration link is also avoided.

The present application relates to a kind of non-ferrous metal processing waste emulsion low-temperature evaporation treatment method and system, solve how to improve water treatment effect problem.Provide a kind of non-ferrous metal processing waste emulsion low-temperature evaporation treatment method, comprising: S1, pretreatment, the surface oil slick and dross of waste emulsion are collected;S2, low-temperature evaporation, after precision filtration waste emulsion is heated in vacuum environment, make the water in waste emulsion evaporate to separate from waste emulsion, and steam is condensed into water, the concentrated solution after waste emulsion evaporation is collected;S3, subsequent treatment, using activated carbon filter condensate water.Provide a kind of non-ferrous metal processing waste emulsion low-temperature evaporation treatment system, comprising sequentially connected: waste emulsion conditioning tank, oil and dross removal device, precision filtration device, low-temperature evaporation device, activated carbon filter device.Compared with reagent demulsification process, this process does not need to add various demulsifiers and acid and alkali, final effluent conductivity is low, system does not produce sludge, no secondary pollution.

The invention belongs to the technical field of lubricating oil, and particularly relates to an anti-coking steam turbine oil composition as well as a preparation method and application thereof. The steam turbine oil composition comprises the following components in percentage by mass: 0.1-2% of a polycyclic thiophene derivative antioxidant, 0.5-5% of an antirust agent, 0.01-0.1% of a metal deactivator, 0-3% of other antioxidants, 0.01-0.03% of a demulsifier, 0.01-0.05% of an anti-wear reagent at extreme pressure and the balance of base oil, totaling 100%. According to the steam turbine oil composition provided by the invention, the polycyclic thiophene derivative is used as a main antioxidant, and multiple functional additives are compounded, so that the steam turbine oil composition shows excellent coking resistance, oxidation resistance and anti-rust property, and all the components show good compatibility and synergistic effect, so that the steam turbine oil composition is stable and excellent in performance, meets the harsh working condition requirements of steam turbines such as high temperature and high pressure in the future, and has wide application prospects. Good application prospects are realized.

The application provides a storage oil settling tank oil-water interface intelligent identification monitoring and regulating system, and relates to the technical field of intelligent control. The system comprises the following steps: collecting data through a microwave-temperature composite sensor array according to the sensor layout position to obtain measured results, wherein the measured results include pure water layer thickness, emulsion layer thickness and pure oil layer thickness; comparing the measured emulsion layer thickness with the emulsion layer thickness prediction value, and recalibrating the three-dimensional model if the deviation is greater than 10%; calling a demulsifier injection dynamic curve to automatically add chemicals when the emulsion layer thickness is greater than 0; executing a temperature control parameter set to start heating when the pure water layer thickness is greater than 0 and the pure oil layer thickness is greater than 0; discharging the water layer from the primary tank bottom after the temperature control is completed and detecting the water content of the discharged water in real time; and returning to the primary tank for further treatment when the water content of the discharged water is greater than 5% and the predicted recovery time is less than or equal to a threshold value. The application can improve the storage oil treatment efficiency.

The invention relates to the field of crude oil produced liquid ground gathering and transportation treatment and oilfield chemical calculation, and particularly discloses a shale oil demulsifier screening and compounding method based on molecular dynamics simulation. The method comprises the following steps: firstly, constructing a standardized oil-water interface molecular model containing asphaltene, colloid and a demulsifier to be evaluated on the basis of shale oil produced liquid components; then, molecular dynamics simulation is carried out under 313 K and 353 K respectively, and a system balance trajectory is obtained; extracting and calculating two key microcosmic indexes from the trajectory, wherein the two key microcosmic indexes comprise the difference E of unit area interface binding energy of a demulsifier and asphaltene / colloid and the thermally induced diffusion enhancement rate gamma calculated based on asphaltene and colloid diffusion coefficients; and finally, associating the microscopic index with the dehydration rate measured by a macroscopic bottle test experiment, establishing a demulsifier performance prediction criterion taking a high E (absolute value) and a high gamma value as a core, and performing classification and rational compounding guidance on the demulsifier according to the criterion. According to the method, rapid and low-cost virtual pre-screening and sorting of the demulsifier performance are realized by using microscopic simulation indexes. The embodiment shows that the demulsifier AR (robust adsorption type) and the demulsifier PR (strong disturbance type) can be compounded according to the mass ratio of 1: 1 based on the criterion, the dehydration rate of the demulsifier at the temperature of 70 DEG C and the concentration of 400 ppm reaches 77.52% and is remarkably superior to that of a single component and other compounding, the accuracy of the prediction criterion and the application value in guiding dominant compounding are verified, and the prediction criterion has a wide application prospect. And a new strategy is provided for rational design and efficient screening of the shale oil demulsifier.

The application discloses a rotary vane vacuum pump lubricating oil composition, which is composed of the following components based on the total weight of the composition: ionic liquid 0.3-3%; antioxidant 0.3-3%; extreme pressure and wear resistant agent 0.01-1%; antirust agent 0.01-1%; metal passivator 0.01-1%; demulsifier 0.005-0.05%; antifoaming agent 0.005-0.05%; and the balance is base oil, the sum of the mass percentages of the above components is 100%; the structure of the ionic liquid is: wherein n is a positive integer of 9-11; the composition has excellent oxidation resistance, wear resistance, rust resistance, corrosion resistance, emulsion resistance and foam resistance, especially excellent rust resistance and corrosion resistance; the rotary vane vacuum pump lubricating oil has excellent comprehensive performance and wide application prospect.

The present application relates to non-ferrous metal processing wastewater treatment technical field, specifically to a kind of aluminium processing waste emulsion concentrate deep demulsification process, the concentrate is obtained after the evaporation concentration 6~10 times of aluminium processing waste emulsion, the process includes the following steps: S1, the concentrate is transported to demulsification device, with 30~60 r / min stirring rate is gently stirred, so that the concentrate is in homogeneous mixing state;S2, 98% concentrated sulfuric acid is added to demulsification device as demulsifier in dropwise manner, dropwise rate is 0.5~1.0 L / h, and the amount of demulsifier is 0.5%~2.0% of the weight of concentrate.Indirect heating method is used instead of steam aeration in prior art, no additional water is introduced into the reaction system, to avoid the concentrate is diluted by steam.Oil sludge output is reduced to 18%~20% of the volume of concentrate, which is 20%~28% lower than 25% of steam aeration scheme;Completely stratification time is shortened to 5.0 hours, which is 33% shorter than 7.5 hours of steam aeration scheme.

The utility model relates to sewage treatment technical field, and disclose a kind of sewage pretreatment equipment, including No. 1 pool, further include: with No. 1 pool communication makes pollutant form small floc No. 2 pool, the one side of No. 2 pool is communicated with No. 3 pool that makes pollutant form big floc;The utility model is through the three-stage dosing reaction of No. 1 pool, No. 2 pool and No. 3 pool, realize the removal of pollutant, activated carbon adsorbs organic matter, pigment and peculiar smell, PAC makes pollutant form small floc, demulsifier destroys oil / colloidal stability and forms big floc, three pool body reaction synergistic effect, significantly improve the removal efficiency of SS, COD, oil and other pollutants, four No. pool adopts inclined pipe filter material structure, pipe is filled with filter material to further intercept small floc, ensure solid-liquid separation, meet subsequent treatment influent requirement, for different sewage type (life / seed germination, printing and dyeing, hospital), provide differentiating reagent dosing scheme.

The invention belongs to the technical field of demulsifier preparation, and particularly relates to a demulsifier for an offshore oilfield and a preparation method of the demulsifier. According to the demulsifying agent for the offshore oilfield, modified polysiloxane is used as a main demulsifying agent, tallow alkyl bis (hydroxyethyl) amine oxide and tetradecyl tributyl phosphonium bis (trifluoromethanesulfonyl) imine salt are used as auxiliary demulsifying agents, methyl-1-oleamidoethyl-2-oleyl imidazoline methyl ammonium sulfate is used as a corrosion inhibitor, ethylene bis stearamide is used as a defoaming agent, and the demulsifying agent is prepared through a one-step method. The cosolvent is a dissolution dispersion medium, the triethanolamine is a pH regulator and a corrosion inhibition synergist, and the deionized water is a continuous phase carrier; all the raw materials have a synergistic effect, so that the prepared demulsifier for the offshore oilfield has excellent dehydration and demulsification performance.

The utility model provides cutting oil fine filtration and purification equipment which comprises a cutting oil stirring shell and further comprises a first stirring structure, a second stirring structure and a third stirring structure, the diluting structure is arranged on the first stirring structure. A diluting shell rotates to drive a second rotating rod to rotate around a first rotating rod, a rotating gear rotates, the rotating gear drives a second stirring rod to rotate, a demulsifying agent and clear water are stirred, the demulsifying agent is evenly diluted, meanwhile, the demulsifying agent diluting efficiency is improved, waste cutting oil is evenly stirred through the stirring rod, and meanwhile the demulsifying agent diluting efficiency is improved. The demulsifying agent can be uniformly added into the waste cutting oil, so that the waste cutting oil and the demulsifying agent can be well stirred, and the full contact efficiency of the waste cutting oil and the demulsifying agent can be improved while the waste cutting oil and the demulsifying agent are in full contact.

The present application relates to wastewater treatment technical field, specifically is a kind of automatic processing device of salicylic acid production wastewater, including the centrifugal extraction mechanism of phenolic substance in wastewater is separated and recovered, also include the treatment tank for demulsification separation of high salt substance in wastewater, the effluent port of treatment tank lower portion is communicated with the wastewater phase inlet of centrifugal extraction mechanism by connecting pipeline, the present application is pretreated to wastewater using treatment tank, by shear turbine one and shear turbine two rotation, mechanical shearing emulsion drop in wastewater to break its interface film, again using flow passage one, flow passage two, flow passage three and flow passage four to the emulsion drop that is broken up are gradually conducted and coalesce, simultaneously combining with the precise metering and putting of dosing assembly on dosing pipe to demulsifier, make the small emulsion drop that difficult to separate in wastewater coalesce and form size larger, easy to separate stable emulsion drop, finally realize the high quality, high efficiency separation of extraction agent phase and wastewater phase.

The invention relates to the technical field of demulsifiers, and particularly provides a demulsifier for oil-water separation of fermentation liquor and a preparation method of the demulsifier. The demulsifying agent disclosed by the invention is prepared from the following components in parts by weight: 50 to 65 parts of fatty diamine polyoxyethylene ether, 20 to 30 parts of fatty amine polyoxyethylene ether, 5 to 15 parts of fatty alcohol polyoxypropylene polyoxyethylene ether and 5 to 10 parts of dispersing agent. The preparation method comprises the following steps: S1, weighing fatty diamine polyoxyethylene ether, fatty amine polyoxyethylene ether, fatty alcohol polyoxyethylene polyoxypropylene ether and a dispersing agent according to a preset proportion; and S2, uniformly mixing the components weighed in the step S1, heating to a preset temperature, and stirring and mixing for 3-4 hours. The demulsifier is good in demulsification performance and convenient to operate and control in the actual application process.

A hyperbranched polymer, a preparation method therefor, and a use thereof. The hyperbranched polymer has a structure represented by formula 1, wherein R1, R2, R3, and R are each independently selected from a C8-C22 alkyl group and a C8-C22 alkenyl group. The hyperbranched polymer, as a demulsifier, is used for crude oil emulsion demulsification, and has the advantages of high demulsification efficiency, low use amount, low demulsification temperature, high acid and alkali resistance, and high salt resistance.